The present invention relates to a disc brake caliper body comprising a mounting side bracket and a non-mounting side bracket extending along a circumferential direction of the body, each bracket being configured to hold at least one brake pad. In order to provide improved cooling efficiency while maintaining the required stability of the brake caliper, the caliper body further comprises at least one cooling duct formed by additive manufacturing, at least one cooling duct being an integral part of the caliper body.

A piston housing manufactured by an additive manufacturing process is provided. The piston housing may comprise a plurality of chambers. The chambers may be in fluid communication with one another via non-linear fluid passageways. The non-linear fluid passageways may be defined in structural members configured to stiffen the piston housing.

A method for making a friction plate that includes a core plate and a friction facing is disclosed. The method includes cutting a pattern of friction material segments into a friction material sheet such that each friction material segment remains integrally connected to the friction material sheet, locating a predetermined number of the friction material segments adjacent to a surface of a core plate to which a bonding material is present, separating the friction material segments from the friction material sheet, and placing the friction material segments onto the surface of the core plate over the bonding material. An apparatus for practicing this method is also disclosed.

Method for manufacturing an asbestos-free friction material having as component materials inorganic and/or organic and/or metallic fibers, at least one organic binder, at least one friction modifier or lubricant and at least a filler or abrasive. The raw components of the friction material are mixed together to obtain a raw mixture which is then molded to obtain a block or layer of friction material. The mixing step includes a first step of hot blending of at least part of the organic binder with at least part of the other components of the friction material by a rolling mill blender that is open to atmospheric pressure at a temperature lower than the polymerization temperature of the organic binder but greater than or equal to its softening temperature, in order to obtain a semifinished solid product. A second step of grinding the semifinished solid product reduces the product to a powder.

A clutch disc assembly, comprising a friction plate, a damper fixedly secured to the friction plate, comprising an inwardly facing saline and a retainer plate, the retainer plate comprises a first radially inwardly facing surface and a second radially inwardly facing surface radially offset from the first radially inwardly facing surface, and a hub, the hub comprises a first radially outwardly facing surface having a circumferential groove, a second radially outwardly facing surface having an outer saline that meshes with the inwardly facing saline to non-rotatably connect the hub and the damper, and an internal saline surface.

A synchronizer ring (10) for synchronized manual transmissions is manufactured by forming or reshaping a flat material of metal, wherein a conical friction surface (20) is produced, into which axial grooves (24) are incorporated by chipless machining, wherein a tool is axially shifted relative to the friction surface (20) to produce the final friction surface (20). At least the friction surface (20) is vibration-ground and subsequently hardened.

A heterogeneous powder molded body may include respective powder processed parts formed of different powders, the heterogeneous powder molded body being formed by a forming machine including a die, a lower forming module located under the die to form a lower part of a molded body to be manufactured, and an upper forming module located above the die to form an upper part of the molded body to be manufactured, in which when each of the different powders is input onto the die to form the molded body, the die ascends and thus a filling time of each input powder is secured.

The disclosure relates to a friction brake body for a friction brake of a motor vehicle, in particular a brake disc, wherein the friction brake body comprises a base body made from gray cast iron, and at least one wear resistant layer formed at least in areas on the base body. The wear resistant layer is a laser alloyed or laser dispersed edge layer of the base body and comprises at least one additive.

In some implementations of the current subject matter, a brake rotor can include a supporting layer applied to a friction surface of a brake rotor substrate, which can optionally include cast iron, and a coating applied over the supporting layer. The supporting layer can include a preparatory metal, and the coating can impart wear and corrosion resistant properties to the friction surface. Related systems, methods, articles of manufacture, and the like are disclosed.

A hollow shaft, which is usable with a constant velocity universal joint, has an increased static torsional strength and torsional fatigue strength of a small diameter portion (small diameter portion having a smooth outer peripheral surface) formed near a spline at an end portion of the hollow shaft, and has a reduced manufacturing cost. The hollow shaft is molded by plastic working from a tubular blank, and subjected to quench hardening treatment. The quench hardening treatment includes carburizing and quenching treatment. The hollow shaft includes a softened section formed in a part of the hollow shaft by local heating treatment after carrying out the carburizing and quenching treatment.